Doctor profile · Federal record

Dr. Mario Velez, MD

Gastroenterology Physician (CMS: Gastroenterology) · Gastroenterology Physician · Milwaukee, WI

  • NPI 1477879765
  • 16 yrs in practice
  • Licensed in 2 states
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2801 W Kinnickinnic River Pkwy Ste 1080
Milwaukee, WI 532153689
(414) 908-6506
fax (414) 908-6510

Credentials & registration

NPPES · NUCC
NPI registered
April 2010 — 16 yrs on file
Profile last updated
January 26, 2026
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State licenses (2)
Wisconsin #70082-20 · Vermont #060.0004183

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1477879765. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
372
Distinct HCPCS
10
Medicare allowed
$53,321
HCPCS Description Services Patients Avg allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 83 83 $217
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 53 53 $76
43248 Insertion of guide wire with dilation of esophagus using a flexible endoscope 32 20 $131
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk 25 25 $159
43242 Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 24 24 $196
43264 Removal of stone or debris from bile or pancreatic duct using a flexible endoscope 19 18 $183
45380 Biopsy of large bowel using a flexible endoscope 19 19 $90
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 17 17 $116
43259 Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 16 16 $181
99213 Established patient office or other outpatient visit, 20-29 minutes 16 15 $81

In context: peer comparison

Among 35 peers in this city , average services per provider: 2,725. This provider delivers 0.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$18
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Boston Scientific Corporation 1 $18.20

By nature of payment

Food and Beverage
$18

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
720
Patients
402
Total drug cost
$150,583
Drug Type Claims Patients Total cost
Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 154 153 $2,526
Omeprazole Generic 125 46 $2,683
Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,mag Sulfates) Brand 124 123 $8,994
Pantoprazole Sodium Generic 73 23 $1,461
Zenpep (Lipase/Protease/Amylase) Brand 33 0 $74,700
Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) Brand 32 30 $626
Amitriptyline Hcl Generic 28 0 $338
Peg-3350 And Electrolytes (Peg3350/Sod Sulf,bicarb,cl/Kcl) Brand 28 27 $525
Linzess (Linaclotide) Brand 27 0 $30,884
Trulance (Plecanatide) Brand 20 0 $12,444

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Mario Velez's medical specialty?
Dr. Mario Velez practices Gastroenterology Physician in Milwaukee, WI.
Where does Dr. Mario Velez practice?
Dr. Mario Velez practices at 2801 W Kinnickinnic River Pkwy Ste 1080, Milwaukee, WI 532153689. Office phone: 4149086506.
What is Dr. Mario Velez's NPI?
Dr. Mario Velez's National Provider Identifier (NPI) is 1477879765, issued by NPPES.
Does Dr. Mario Velez accept Medicare assignment?
Dr. Mario Velez does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Mario Velez commonly perform?
Top Medicare-reported procedures in 2023: Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Insertion of guide wire with dilation of esophagus using a flexible endoscope (HCPCS 43248). Source: CMS Medicare Physician & Other Practitioners file.